3-5 Wiring
DC Input
Module Wiring—Inputs
PS-5024
PS-5124
AC Input
Sourcing
• Input devices can be mechanical contacts or solid state.
• The load 10K load resistor shown may be needed if the AC input device
has off-state leakage, such as a solid state triac.
Sinking
• Input devices can be mechanical contacts or solid state.
• 12 VDC power is available from the controller
’
s logic terminal strip. See
page 3-1 for details.
Input Wiring, 3-Wire Sensors
Using Logic Terminal Strip Power Supply (pg. 3-1)
Sourcing
Sinking
• For controllers using input/output modules.
• Module wiring applies only to controllers using input/output modules.
• Using sensor to switch terminal 7 can be done for any PS-5000 Series
controller. See page 3-1 for details.
• Using sensor to switch terminal 7 can be done for any PS-5000 Series
controller. See page 3-1 for details.
Using External Power Supply & Terminal 7
Various
Models
Sinking
means that when the logic is true and the output (or input device) is ON, the output (or input device)
is providing a DC common or ground to the connected device.
Sourcing
means that when the logic is true and the output (or input device) is ON, the output (or input device)
is providing a +DC voltage to the connected device.
This information is important when interfacing an Electro Cam Corp. product with another electronic device. If you are using an Electro Cam Corp. product
input to an Allen-Bradley 1746-IN16 “sinking” input card* or similar A-B device, you have to supply a +DC voltage (Electro Cam Corp.
Sourcing
output)
to this card, NOT a DC common or ground. In these cases,
Sinking
is what the card does with the input voltage; sinks it to common or ground.
*Other manufacturers include, but not limited to: Koyo (formerly GE Series 1, Texas Instruments, or Siemens SIMATIC PLS
’
s) that use descriptions
similar to Allen-Bradley.
Sinking or Sourcing (as pertaining to Electro Cam Corp. products)
